Which of the following correctly describes juxtacrine signaling?

Direct contact is made between the cells sending and receiving the ligand.

What is the result of positive feedback?

Cell processes are magnified until an end result is achieved.

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AP Biology Unit 4: Cell Communication and Signaling

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Do you know the types of cell signaling, the major steps of signal transduction, and how feedback mechanisms work? Put your knowledge to the test with this Barron's quiz developed from our must-have AP® Biology Premium study guide. #apbiology #biology #apbio #apprep #apbioexam #apbioreview #cells #cellsignaling #highschool #grade10 #grade11 #grade12 AP® is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product.

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Questions 10

Answers

1
Chemical signals are called __________.
kinases
intracellular receptors
cell membrane receptors
ligands
2
Your body temperature is too high. Cell signaling triggers sweat. Your body temperature returns to normal. This is ___.
cytokinesis
positive feedback
negative feedback
apoptosis
3
Which of the following correctly describes juxtacrine signaling?
A cell travels a short distance to elicit an effect on another cell.
Ligands travel a long distance between the sending and receiving cells.
A ligand binds to a receptor on the cell that secreted the ligand.
Direct contact is made between the cells sending and receiving the ligand.
4
These respond to the presence of a ligand.
target cells
oncogenes
phosphatases
mutations
5
This is when a cell signals itself to generate a response.
juxtacrine signaling
autocrine signaling
endocrine signaling
paracrine signaling
6
What is the result of positive feedback?
Genes develop mutations.
Cell processes are magnified until an end result is achieved.
Ligands travel long distances in the bloodstream.
Homeostasis is achieved.
7
The hormone ethylene traveled through the air to trigger the ripening of fruits. This is an example of __________.
endocrine signaling
juxtacrine signaling
paracrine signaling
autocrine signaling
8
These are the series of chemical reactions that mediate the sensing and processing of stimuli.
signal transduction pathways
secondary messages
cyclin-dependent kinases
Krebs cycle
9
In paracrine signaling, neurotransmitters are local regulators that travel __________.
a long distance
to helper T cells
a short distance
between channels that connect adjacent cells
10
Which of the following is a major step in signal transduction?
translation
reception
all of these
transcription

AP Biology Unit 4: Cell Communication and Signaling Flashcards | StudBud

AP Biology Unit 4: Cell Communication and Signaling

10 termsStudBud Administration19,596 plays

Flashcards10 cardsFPractice quizPHost liveL

Questions 10

Answers

1
Chemical signals are called __________.
kinases
intracellular receptors
cell membrane receptors
ligands
2
Your body temperature is too high. Cell signaling triggers sweat. Your body temperature returns to normal. This is ___.
cytokinesis
positive feedback
negative feedback
apoptosis
3
Which of the following correctly describes juxtacrine signaling?
A cell travels a short distance to elicit an effect on another cell.
Ligands travel a long distance between the sending and receiving cells.
A ligand binds to a receptor on the cell that secreted the ligand.
Direct contact is made between the cells sending and receiving the ligand.
4
These respond to the presence of a ligand.
target cells
oncogenes
phosphatases
mutations
5
This is when a cell signals itself to generate a response.
juxtacrine signaling
autocrine signaling
endocrine signaling
paracrine signaling
6
What is the result of positive feedback?
Genes develop mutations.
Cell processes are magnified until an end result is achieved.
Ligands travel long distances in the bloodstream.
Homeostasis is achieved.
7
The hormone ethylene traveled through the air to trigger the ripening of fruits. This is an example of __________.
endocrine signaling
juxtacrine signaling
paracrine signaling
autocrine signaling
8
These are the series of chemical reactions that mediate the sensing and processing of stimuli.
signal transduction pathways
secondary messages
cyclin-dependent kinases
Krebs cycle
9
In paracrine signaling, neurotransmitters are local regulators that travel __________.
a long distance
to helper T cells
a short distance
between channels that connect adjacent cells
10
Which of the following is a major step in signal transduction?
translation
reception
all of these
transcription